New extremal self-dual codes of lengths 42 and 44

@article{Buyuklieva1997NewES,
  title={New extremal self-dual codes of lengths 42 and 44},
  author={Stefka Buyuklieva},
  journal={IEEE Trans. Information Theory},
  year={1997},
  volume={43},
  pages={1607-1612}
}
All extremal binary self-dual codes of lengths42 and 44 which have an automorphism of order 5 with eight independent cycles are obtained up to equivalence. There are 109 inequivalent [42; 21; 8] codes with such an automorphism. All[44; 22; 8] codes that are obtained have 29 different weight enumerators. 

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